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<p>The fabrication of glasses utilizing Li-ion battery cathode-active material Li(Ni<sub>0.80</sub>Co<sub>0.15</sub>Al<sub>0.05</sub>)O<sub>2</sub> (NCA) and phosphorus pentoxide is reported for the first time with the purpose of preliminarily evaluating vitrification for the management of the battery component. The materials were mixed following <i>x</i>NCA-(100 – <i>x</i>)P<sub>2</sub>O<sub>5</sub> with <i>x</i> = 20, 25, 30, 35, 40&#xa0;mol% nominal compositions and melted. The products were characterized by X-ray diffraction, density, differential scanning calorimetry, and Fourier transform infrared spectroscopy. X-ray diffraction supported glass formation in the compositional range explored. The densities first decreased within 20–25&#xa0;mol% NCA and then increased up to 40&#xa0;mol% NCA. Comparable trends were observed for the glass transition/crystallization temperatures which first decreased/increased and afterward increased/decreased. Vibrational spectroscopy showed features characteristic of phosphate glasses, indicating a structural evolution consistent with a turning point for 25&#xa0;mol% NCA. The results are rationalized considering lithium and the transition metals act as network modifiers with nickel having a prominent role, whereas aluminum is incorporated as network former.</p>

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Glass making with Ni-rich cathode-active material NCA and phosphorus pentoxide

  • 期刊论文

  • 发表日期：

    2025年8月11日

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  • José A. Jiménez

摘要

The fabrication of glasses utilizing Li-ion battery cathode-active material Li(Ni0.80Co0.15Al0.05)O2 (NCA) and phosphorus pentoxide is reported for the first time with the purpose of preliminarily evaluating vitrification for the management of the battery component. The materials were mixed following xNCA-(100 – x)P2O5 with x = 20, 25, 30, 35, 40 mol% nominal compositions and melted. The products were characterized by X-ray diffraction, density, differential scanning calorimetry, and Fourier transform infrared spectroscopy. X-ray diffraction supported glass formation in the compositional range explored. The densities first decreased within 20–25 mol% NCA and then increased up to 40 mol% NCA. Comparable trends were observed for the glass transition/crystallization temperatures which first decreased/increased and afterward increased/decreased. Vibrational spectroscopy showed features characteristic of phosphate glasses, indicating a structural evolution consistent with a turning point for 25 mol% NCA. The results are rationalized considering lithium and the transition metals act as network modifiers with nickel having a prominent role, whereas aluminum is incorporated as network former.